Mean Nocturnal Baseline Impedance in GERD (Gastroesophageal Reflux Disease)

Reduced. Studies summarised in the OSMF atlas report lower Mean Nocturnal Baseline Impedance in GERD (Gastroesophageal Reflux Disease) than in healthy asymptomatic volunteers, patients with reflux hypersensitivity, and patients with functional heartburn. Source: Hoshikawa et al. 2020.

The atlas record does not list a standardised clinical test code (LOINC) for Mean Nocturnal Baseline Impedance, which usually means it was measured with research assays or study-specific protocols rather than a routine clinical panel. Check the cited source for the exact method.

No. No single biomarker is diagnostic of GERD (Gastroesophageal Reflux Disease). Mean Nocturnal Baseline Impedance findings come from group comparisons, overlap considerably between patients and controls, and vary with study design, timing and comparison group. A result should be interpreted by a clinician alongside symptoms, history and other tests.